We propose a high-sensitivity compact dual-T-type resonant fiber-optic photoacoustic (DTR-
FOPA) sensor for simultaneous detection of two gases. The designed DTR-FOPA sensor …

A novel spectroscopic method, named quartz-enhanced photoacoustic spectroscopy-
conductance spectroscopy (QEPAS-CS), was first developed for gas mixture analysis. In …

This study successfully synthesized a series of Mn (OH) F hollow structures doped with rare
earth elements (Sm, Nd, Ce, and Tb) using a hydrothermal method. A comprehensive …

In this work, we reported the design and performance of a novel colorimetric tuning fork
(CTF)-based gas sensor that could simultaneously capture both chemical and mechanical …

To improve the quality of modern life in the current society, low-power, highly sensitive, and
reliable healthcare technology is necessary to monitor human health in real-time. In this …

Photoacoustic spectroscopy (PAS) gas sensors based on optomechanical resonators
(OMRs) have garnered significant attention for ultrasensitive trace-gas detection. However, a …

Light-induced thermoelastic spectroscopy (LITES), boasting an extended effective optical
path length, stands as a potent approach for trace gas detection. The indispensable factor …

In this work, a microfiber knot resonator augmented quartz-enhanced photoacoustic
spectroscopy (MKR-QEPAS) was developed for the analysis of trace gases. In the proof-of …

In this article, an all fiber-optic photoacoustic spectroscopy (PAS) sensor combining
resonance and nonresonance (RNR) photoacoustic cells (PACs) is reported for high …

A proof-of-concept on-beam tuning-fork-enhanced photoacoustic sensor based on an open-
closed single-tube acoustic-microresonator (AmR) was proposed and investigated for the …